diff --git a/app/src/components/DiseaseGraph.js b/app/src/components/DiseaseGraph.js
index 189f66d..0a4fee3 100644
--- a/app/src/components/DiseaseGraph.js
+++ b/app/src/components/DiseaseGraph.js
@@ -1,4 +1,4 @@
-import React, {useEffect} from 'react';
+import React from 'react';
 import Graph from './Graph.js';
 import {types} from '../data/mock.js';
 import {useAsync} from '../util.js';
diff --git a/app/src/components/TermInput.js b/app/src/components/TermInput.js
index 08889e4..c6382c8 100644
--- a/app/src/components/TermInput.js
+++ b/app/src/components/TermInput.js
@@ -13,6 +13,19 @@ const keys = Object.assign(Object.create(null), {
     'down': 40,
 });
 
+/**
+ * Met le nom d’un terme sous forme normalisée pour la recherche approximative.
+ *
+ * Dans la forme normalisée, tous les accents sont ôtés et la casse est réduite
+ * en minuscules.
+ *
+ * @param name Nom à normaliser.
+ * @return Liste des mots du nom de terme normalisé.
+ */
+const normalizeName = name =>
+    diacritics.remove(name.toLowerCase())
+        .split(/\s+/g);
+
 /**
  * Vérifie si un terme est similaire à un préfixe saisi.
  *
@@ -20,10 +33,19 @@ const keys = Object.assign(Object.create(null), {
  * @param term Terme à vérifier.
  * @return Vrai si le terme est considéré comme similaire au préfixe.
  */
-const termMatchesPrefix = (prefix, {name}) =>
+const termMatchesPrefix = (prefix, {name, alias}) =>
 {
-    return diacritics.remove(name.toLowerCase())
-        .startsWith(diacritics.remove(prefix.toLowerCase()));
+    const haystack = [name].concat(alias)
+        .map(normalizeName)
+        .reduce((prev, next) => prev.concat(next), []);
+
+    const needle = normalizeName(prefix);
+
+    return needle.every(item =>
+        haystack.some(word =>
+            word.startsWith(item)
+        )
+    );
 };
 
 /**
diff --git a/app/src/data/mock.js b/app/src/data/mock.js
index 602190c..9dbda56 100644
--- a/app/src/data/mock.js
+++ b/app/src/data/mock.js
@@ -4,7 +4,7 @@
 export const types = {
     disease: 'Maladie',
     symptom: 'Symptôme',
-    sign: 'Signe'
+    sign: 'Signe',
 };
 
 /**
@@ -15,112 +15,175 @@ export const terms = {
     Q2840: {
         id: 'Q2840',
         name: 'Grippe',
+        alias: [],
         types: [types.disease],
-        weight: 0.000035
+        weight: 0.000035,
     },
     Q154882: {
         id: 'Q154882',
         name: 'Légionellose',
+        alias: [
+            'Légionnellose',
+            'Légionnelose',
+            'Légionelose',
+            'Maladie des légionnaires',
+        ],
         types: [types.disease],
-        weight: 0.000015
+        weight: 0.000015,
     },
     Q155098: {
         id: 'Q155098',
         name: 'Leptospirose',
+        alias: [],
         types: [types.disease],
-        weight: 0.00001
+        weight: 0.00001,
     },
     Q326663: {
         id: 'Q326663',
         name: 'Encéphalite à tiques',
+        alias: [
+            'Encéphalite à tique',
+            'Encéphalites à tiques',
+            'Encéphalite d\'Europe centrale',
+            'Encéphalite verno-estivale russe',
+            'Méningoencéphalite à tique',
+            'Méningoencéphalite diphasique',
+            'Méningoencéphalite biondulante',
+            'Fièvre de lait diphasique',
+            'Maladie de Schneider',
+            'Maladie de Kumlinge',
+        ],
         types: [types.disease],
-        weight: 0.000001
+        weight: 0.000001,
     },
     Q133780: {
         id: 'Q133780',
         name: 'Peste',
+        alias: [],
         types: [types.disease],
-        weight: 0.000032
+        weight: 0.000032,
     },
     Q38933: {
         id: 'Q38933',
         name: 'Fièvre',
-        types: [types.symptom]
+        alias: [
+            'Pyrexie',
+        ],
+        types: [types.symptom],
     },
     Q474959: {
         id: 'Q474959',
         name: 'Myalgie',
-        types: [types.symptom]
+        alias: [
+            'Douleur musculaire',
+        ],
+        types: [types.symptom],
     },
     Q86: {
         id: 'Q86',
         name: 'Céphalée',
-        types: [types.sign]
+        alias: [
+            'Mal de tête',
+        ],
+        types: [types.sign],
     },
     Q1115038: {
         id: 'Q1115038',
         name: 'Rhinorrhée',
-        types: [types.symptom]
+        alias: [
+            'Nez qui coule',
+            'Écoulement nasal',
+        ],
+        types: [types.symptom],
     },
     Q9690: {
         id: 'Q9690',
         name: 'Fatigue',
-        types: [types.symptom]
+        alias: [],
+        types: [types.symptom],
     },
     Q127076: {
         id: 'Q127076',
         name: 'Vomissement',
-        types: [types.symptom, types.sign]
+        alias: [
+            'Vomissements',
+            'Vomi',
+            'Vomissage',
+            'Vomir',
+        ],
+        types: [types.symptom, types.sign],
     },
     Q178061: {
         id: 'Q178061',
         name: 'Choc circulatoire',
+        alias: [
+            'Insuffisance circulatoire aiguë',
+        ],
         types: [types.disease],
-        weight: 0.000038
+        weight: 0.000038,
     },
     Q35805: {
         id: 'Q35805',
         name: 'Toux',
-        types: [types.symptom, types.sign]
+        alias: [
+            'Tousse',
+            'Toussote',
+        ],
+        types: [types.symptom, types.sign],
     },
     Q647099: {
         id: 'Q647099',
         name: 'Hémoptysie',
-        types: [types.symptom]
+        alias: [
+            'Expectoration sanglante',
+        ],
+        types: [types.symptom],
     },
     Q653197: {
         id: 'Q653197',
         name: 'Rash',
-        types: [types.symptom, types.sign]
+        alias: [],
+        types: [types.symptom, types.sign],
     },
     Q160796: {
         id: 'Q160796',
         name: 'Syndrome confusionnel',
+        alias: [
+            'Confusion mentale',
+        ],
         types: [types.disease],
-        weight: 0.000004
+        weight: 0.000004,
     },
     Q186235: {
         id: 'Q186235',
         name: 'Myocardite',
+        alias: [],
         types: [types.disease],
-        weight: 0.0000075
+        weight: 0.0000075,
     },
     Q476921: {
         id: 'Q476921',
         name: 'Insuffisance rénale',
+        alias: [],
         types: [types.disease],
-        weight: 0.0000046
+        weight: 0.0000046,
     },
     Q281289: {
         id: 'Q281289',
         name: 'Photophobie',
-        types: [types.sign]
+        alias: [],
+        types: [types.sign],
     },
     Q159557: {
         id: 'Q159557',
         name: 'Coma',
-        types: [types.sign]
-    }
+        alias: [
+            'Perdre connaissance',
+            'Coma végétatif',
+            'Perte de connaissance',
+        ],
+        types: [types.sign],
+    },
 };
 
 /**
@@ -161,7 +224,7 @@ export const hasSymptom = [
     ['Q133780', 'Q35805'],
     ['Q133780', 'Q647099'],
     ['Q133780', 'Q653197'],
-    ['Q133780', 'Q160796']
+    ['Q133780', 'Q160796'],
 ];
 
 /**